Typically found in the Forest, beavers are mutated versions of furred pre-War beavers. While maintaining their size, beavers underwent a series of other mutations. The growth of fur has been greatly reduced, revealing wrinkled, fleshy pink skin.

The tail and back are covered in jagged spike growths protruding from the body. The nose and front teeth are remarkably exaggerated. Capable of dealing massive damage. The meat of beavers has become a staple amongst Tribals in the Zion valley who began to hunt them after they caused a series of structural collapses.